To cite package ‘sstvars’ in publications use:

Virolainen S (2026). sstvars: Toolkit for Reduced Form and Structural Smooth Transition Vector Autoregressive Models. R package version 1.2.6, https://CRAN.R-project.org/package=sstvars.

Corresponding BibTeX entry:

  @Manual{,
    title = {sstvars: Toolkit for Reduced Form and Structural Smooth
      Transition Vector Autoregressive Models},
    author = {Savi Virolainen},
    year = {2026},
    note = {R package version 1.2.6},
    url = {https://CRAN.R-project.org/package=sstvars},
  }